Flexible pipe-joint.



No. 879,588. PATENTED FEB. 18, 1908.

G. RIEXINGER.

FLEXIBLE PIPE JOINT. APPLICATION FILED FEB. 2. 1907 2 SHEETS-SHEET 1.

-51 vel Z02 PATENTED FEB. 18, 1908. G. RIEXINGBR.

FLEXIBLE PIPE JOINT. APPLICATION FILED FEB. 2, 1907 2 SHEETS-SHEET 2.

GEORGE RIEXINGER, OF BUFFALO, NEW YORK.

FLEXIBLE PIPE-JOINT.

Specification of Letters Patent.

Patented Feb. 18, 1908.

Application filed February 2, 1907. Serial No. 355.450.

To all whom it may concern:

Be it known that I, GEORGE RIEXINGER, a citizen of the United States, residing at Buffalo, in the county of Erie and'State of New York, have invented a new and useful Im- 1 provement in Flexible Pipe-Joints, of which of-2 sheets: Figure 1 is a side elevation of the' piping connected to the air or steam 1pipe of a car. Fig. '2 is a to plan view of t e same. Fig. 3 is a detache perspective view of the right-angle fitting forming part of the piping. F g. 4 is a lon ltudinal' section, on an enlarged scale, in ine 4-4, Fig. 2. Fig. 5 is a similar section in line 55, Fig. 1.

Similar letters of reference indicate corresponding parts throughout the several views.

The piping shown in the drawings comrises four main sections or members A, B, C,

c onnected by joints arranged at different angles to give the same the capacity of universal motion, as required in train-connections. The member A consists of a short pipe section or fitting adapted to be screwed into the air or steam pipe ni of'a railway-car. As best'shown in Fig. 4, this fitting is closed at its front end and rovided with a downwardly-extendinghollow journal or nipple if having an external shoulder f 'which is pre erably undercut, as shown, while its lower portion is reduced and screw threaded externally, as shown at f G indicates a coupling ring or collar snugly surrounding the large unthreaded'u per portion of the nipple f and having a re uced externally screw threaded lower end which engages a screw threaded 0 ening it formed in the u er fiat side of a ho low head or fittin H. The latter is closed at its rear end and secured at its front end to the inclined memberB of the piping with which it communi: cates. The coupling ring G is retained u on the nipplef by an annular nut or thimblh I arran ed in the ring and screwed upon the threa ed end of the nipple and having an external flange or shoulderi which bears against the lower end of the ring. The bore of the coupling ring is recessed or undercut, as

shown at g, to form an internal shoulder g which is located in line with the shoulder f of the ni ple. The nut I is provided within the coup ing ring with an external shoulder i between which and the shoulders f and g a suitable acking is interposed to form a tight oint getween the nipple and the coupling ring. This packing preferably consists of a leather gasket j resting against the shoulder i of the nut; a similar gasket 7' restin against the shoulders f g of the nipple an the coupling ring and extending across the joint between the sarfre and asbestos packing j filling the space between said gaskets. The nut I -1s small enough in diameter to pass through the opening i h of the head H. In order to stiffen the parts of the joint just described, they may be connected by a brace K bolted at its front end to a lug is projecting from the head H and pivoted at its rear end upon a vertical stud arranged on the upper side of the member A in axial alinement with the nipple This improved joint while ,being absolutely tight, permits the head H and the pipe members carried thereby to turn freely, in a horizontal plane, the head being rigidly secured to the coupling ring G and the latter turning upon the ni p e f and the cylindrical surface of the nut In assembling the parts of the joint, the

gasket 9' and the packing 7' are first placed in the coupling ring G, and the latter is then passed over the nipple f. The nut I with the gasket a plied to it, is next screwed u on the en of the nipple and tightened, t us compressing said gaskets and packing and forming a tight jOlIlt between the cou lin ring and ithenip le.' The opening of the ea H is then asse over the nut I and the coupling ring is tightly screwed into said openand finally the brace K is ap lied.

he members B and D are re erably connected with the hollow memfier or fittin 'C b joints of the same construction as t at a ove described but arranged at difierent angles to render the piping capable of universal movement. In t e construction shown in the'drawings, the member 0 has nip les M, M arrange at right angles to each ot er, the nipple Mf being at right angles to the hi ple f but in a somewhat inclined position. is the joints of which the ni ples M, M form members are the same as t at first described, a detailed description and illustration of them is unnecessary. It will sufiice to state that N,

joints which engage screw threaded openings in the sides of the member D and a hollow head or fitting 0 secured to the lower end of the pipe section B. The foremost member of the flexible piping carries a coupling P of any suitable or well known construction which is adapted to interlock with the corresponding coupling of an opposing railway car, in a common manner.

While my improved joint is herein shown and described in connection with flexible piping for railway cars, I do not wish to be confined to that use, as the improvement is enerally useful for connecting pipes or ho low members requiring a swinging or swiveling movement. I

I claim as my invention 1. A pipe joint comprising two hollow members, one having a nipple and the other an openin a coupling ring surrounding said nipple-an secure in said opening, and a nut smaller than said opening applied to said nipple and arranged within the interior of said coupling ring, said nut having means engaging the inner end of the coupling ring, substantially as set forth.

2. A pipe joint comprising two hollow members, one having'a nipple and the other an openin a coupling ring surrounding said nipple an secured in said 0 ening, packing interposed between the nipp e and the coupling rin and a nut smaller than said opening app ied to said nipple, arranged within the interior of said coup ing ring and bearing against said packing, said nut having means engaging the inner end of the coupling ring,

substantiall as set forth.

3. A pip joint, comprising two hollow members, one having a screw-threaded nipple and the other an opening, a coupling ring surrounding said nipple and secured in said opening, said ni ple and said ring be rovided in their a acent walls with shou ers, a screw-threaded member engaging said nipple and arran ed within the interior of said ring, and padliing interposed between said screw threaded member and said shoulders, substantially as set forth.

' 4. A pipe joint, comprising two hollow members, one having a screw-threaded nipple and the other an opening, a coupling rin surrounding said nipple and securdin'sai opening, a retaining nut applied to said nilpp e within the coupling ring and engaging t e end of the ring, said nipple having an external shoulder and said ring an internal shoulder coinciding with said external shoulder, and packing inter osed between said nut and said shoulders an extending across the joint between the latter, substantially as set forth.

5. A pipe joint, comprising two hollow' 7 members, one having a threaded opening and the other an externally threaded nip le having an external undercut shoulder, a t eaded coupling ring surroundin said nipple, engagin said opening and aving an internal shoul er arranged in line with the shoulder of, the nipple, an annular nut arran ed in said ring an engaginglthe nipple, sai nut be' provided within t e ring with a shoulder an at its end with a flange which bears against the adjacent end of the r' and packing gaskets interposed between t e shoulder of the nut and the shoulders of the nipple and couplin ring, substantiallyasset forth. j

itness my hand this 25th day of January,

GEORGE RIEXINGER. Witnesses:

THOMAS RIEXINGER,

C. F. GEYER. 

